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Finding the Fourth Proportional to 191,153.80, 286,385.10 and 169,035.40

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Solution

The fourth proportional to 191,153.80, 286,385.10 and 169,035.40 is: 253,247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,153.80 : 286,385.10 = 169,035.40 : x
  2. Step 2: Convert to fraction form
    191,153.80/286,385.10 = 169,035.40/x
  3. Step 3: Cross multiply
    191,153.80x = 286,385.10 × 169,035.40
  4. Step 4: Simplify right side
    191,153.80x = 48,409,219,932.54
  5. Step 5: Solve for x
    x = 48,409,219,932.54/191,153.80
  6. Step 6: Final answer
    x = 253,247.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.